I wrote a simple example of calling out into Rust from Python using cffi: https://github.com/maciejkula/python-rustlearn https://github.com/maciejkula/python-ru

I wrote a simple example of calling out into Rust from Python using cffi: https://github.com/maciejkula/python-rustlearn https://github.com/maciejkula/python-rustlearn. The gist of it is: it's really easy.